Evidence map›Paper›PMID 12644495›Full record

ArticleJournal of bacteriology2003

The ascorbate transporter of Escherichia coli.

Zhongge Zhang, Mohammad Aboulwafa, Meghan H Smith, Milton H Saier

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.9field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 78 citations in OpenAlex.

  1. Article
  2. Review
  3. HarnessingACS synthetic biology · 2022
    Article
  4. A curated collection ofGenome research · 2022
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. [Effect of ptxA and ptxB genes of phosphotransferase system on growth of Streptococcus mutans].Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2016
    Article
  14. Article
  15. The invertebrate Caenorhabditis elegans biosynthesizes ascorbate.Archives of biochemistry and biophysics · 2015
    Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 2 countries.

Zhongge ZhangDivision of Biological Sciences, University of California at San Diego, La Jolla, California 92093-0116, USA.
Mohammad Aboulwafa
Meghan H Smith
Milton H Saier
University of California, San Diego · US

Funding

ATP DEPENDENT PROTEIN KINASES IN GRAM POSITIVE BACTERIAR01GM055434 · NIGMS · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI SAIER, MILTON H. · 1997 to 2004
$1.1M
NIGMS NIH HHS GM55434NIGMS NIH HHS R01 GM055434
6 · The paper itself

Abstract

The sgaTBA genes of Escherichia coli encode a putative 12-transmembrane alpha-helical segment (12 TMS) transporter, an enzyme IIB-like protein and an enzyme IIA-like protein of the phosphotransferase system (PTS), respectively. We show that all three proteins as well as the energy-coupling PTS proteins, enzyme I and HPr, are required for the anaerobic utilization and uptake of L-ascorbate in vivo and its phosphoenolpyruvate-dependent phosphorylation in vitro. The transporter exhibits an apparent K(m) for L-ascorbate of 9 micro M and is highly specific. The sgaTBA genes are regulated at the transcriptional level by the yjfQ gene product, as well as by Crp and Fnr. The yjfR gene product is essential for L-ascorbate utilization and probably encodes a cytoplasmic L-ascorbate 6-phosphate lactonase. We conclude that SgaT represents a novel prototypical enzyme IIC that functions with SgaA and SgaB to allow phosphoryl transfer from HPr(his-P) to L-ascorbate via the phosphoryl transfer pathway: [pathway: see text].

Indexed as

AnaerobiosisAscorbic AcidBacterial ProteinsBiological Transport, ActiveCarrier ProteinsCell DivisionCyclic AMP Receptor ProteinEscherichia coliEscherichia coli ProteinsGene Expression Regulation, BacterialIron-Sulfur ProteinsMembrane Transport ProteinsMutationPhosphoenolpyruvate Sugar Phosphotransferase SystemPhosphorylationRepressor ProteinsAscorbic AcidBacterial ProteinsCarrier ProteinsCyclic AMP Receptor ProteinEscherichia coli Proteinsferric uptake regulating proteins, bacterialFNR protein, E coliIron-Sulfur ProteinsMembrane Transport ProteinsPhosphoenolpyruvate Sugar Phosphotransferase SystemRepressor ProteinsSgaA protein, E coliSgaB protein, E coliSgaT protein, E coliYifQ protein, E coli

Identifiers

PMID12644495
PMCPMC151508
OpenAlexW2145267759

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.